Comparison
lagent vs LeanCopilot
Verdict
Pick lagent if lagent is a Python framework aimed at streamlining the creation of lightweight Large Language Model (LLM) agents; pick LeanCopilot if a system that leverages large language models for theorem proving in the Lean environment.
Markdown twin · lagent alternatives · LeanCopilot alternatives
GraphCanon updated 6d
vs
Trust & integrity
| Signal | lagent | LeanCopilot |
|---|---|---|
| Maintenance | Active (12d since push) As of 6d · github_public_v1 | Active (9d since push) As of 4w · github_public_v1 |
| Provenance | Not a fork · Organization account As of 6d · github_public_v1 | Not a fork · Organization account As of 4w · github_public_v1 |
| OSV dependency advisories | No lockfile (source not queried) As of 1mo · osv@v1 | No lockfile (source not queried) As of 1mo · osv@v1 |
| deps.dev advisories | Not queried deps.dev@v1 | Not queried deps.dev@v1 |
| OpenSSF Scorecard | Not queried openssf-scorecard@v1 | Not queried openssf-scorecard@v1 |
Tagline
- lagent
- A lightweight framework for building LLM-based agents
- LeanCopilot
- LLMs as Copilots for Theorem Proving in Lean
Stars
- lagent
- 2.3k
- LeanCopilot
- 1.3k
Forks
- lagent
- 238
- LeanCopilot
- 126
Open issues
- lagent
- 24
- LeanCopilot
- 5
Language
- lagent
- Python
- LeanCopilot
- C++
Adopt for
- lagent
- lagent is a Python framework aimed at streamlining the creation of lightweight Large Language Model (LLM) agents.
- LeanCopilot
- A system that leverages large language models for theorem proving in the Lean environment.
Persona
- lagent
- -
- LeanCopilot
- -
Runtime
- lagent
- -
- LeanCopilot
- -
License
- lagent
- lagent is open-source under the Apache-2.0 license, allowing for broad use and modification with attribution.
- LeanCopilot
- MIT
Last pushed
- lagent
- Aug 3, 2026
- LeanCopilot
- Jul 16, 2026
Categories
- lagent
- AI Agents, LLM Frameworks
- LeanCopilot
- AI Agents, LLM Frameworks
Trust and health
Days since push
- lagent
- 12d
- LeanCopilot
- 9d
Open issues (now)
- lagent
- 24
- LeanCopilot
- 5
Stars delta
- lagent
- +8 (30d)
- LeanCopilot
- Unknown
Open issues delta
- lagent
- +1 (30d)
- LeanCopilot
- Unknown
Full report
- lagent
- Trust report
- LeanCopilot
- Trust report
Choose lagent if…
- lagent is primarily Python; LeanCopilot is C++.
- License: lagent is Apache-2.0, LeanCopilot is MIT.
- Pricing: Available freely due to its open-source nature, but customization or enterprise support might involve additional costs..
- Tags unique to lagent: agent, gpt, transformers.
- When you need a streamlined approach to develop LLM-based agents with minimal overhead, lagent can be particularly advantageous due to its lightweight design.
When NOT to use lagent
- Avoid using lagent if your project necessitates integration with a broader set of tools that are not natively supported by this framework, as it offers limited out-of-the-box extensibility.
- Steer clear if you need robust scalability features right from the start. While lightweight, lagent may require additional custom work to handle more demanding scaling requirements.
Choose LeanCopilot if…
- LeanCopilot is primarily C++; lagent is Python.
- License: LeanCopilot is MIT, lagent is Apache-2.0.
- Tags unique to LeanCopilot: formal-mathematics, lean, lean4, llm-inference.
- LeanCopilot ships Docker support for self-hosted deployment.
- Need support with formal proof development in Lean or Lean4 specifically
When NOT to use LeanCopilot
- Working exclusively in theorem provers other than Lean or Lean4
- Looking for general-purpose AI programming assistant beyond Lean's domain
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (InternLM/lagent) · observed Aug 16, 2026
- GitHub forks (InternLM/lagent) · observed Aug 16, 2026
- Last push (InternLM/lagent) · observed Aug 3, 2026
- License file (Apache-2.0) · observed Aug 16, 2026
- Decision facts (enrichment) · observed Jul 12, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (lean-dojo/LeanCopilot) · observed Jul 25, 2026
- GitHub forks (lean-dojo/LeanCopilot) · observed Jul 25, 2026
- Last push (lean-dojo/LeanCopilot) · observed Jul 16, 2026
- License file (MIT) · observed Jul 25, 2026
- Decision facts (enrichment) · observed Jul 17, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
GitHub stars on cards: lagent 2.3k · LeanCopilot 1.3k (synced Aug 16, 2026).
Common questions
- What is the difference between lagent and LeanCopilot?
- lagent: A lightweight framework for building LLM-based agents. LeanCopilot: LLMs as Copilots for Theorem Proving in Lean. See the comparison table for live GitHub stats and shared categories.
- When should I choose lagent over LeanCopilot?
- Choose lagent over LeanCopilot when lagent is primarily Python; LeanCopilot is C++; License: lagent is Apache-2.0, LeanCopilot is MIT; Pricing: Available freely due to its open-source nature, but customization or enterprise support might involve additional costs.; Tags unique to lagent: agent, gpt, transformers; When you need a streamlined approach to develop LLM-based agents with minimal overhead, lagent can be particularly advantageous due to its lightweight design.
- When should I choose LeanCopilot over lagent?
- Choose LeanCopilot over lagent when LeanCopilot is primarily C++; lagent is Python; License: LeanCopilot is MIT, lagent is Apache-2.0; Tags unique to LeanCopilot: formal-mathematics, lean, lean4, llm-inference; LeanCopilot ships Docker support for self-hosted deployment; Need support with formal proof development in Lean or Lean4 specifically.
- When should I avoid lagent?
- Avoid using lagent if your project necessitates integration with a broader set of tools that are not natively supported by this framework, as it offers limited out-of-the-box extensibility. Steer clear if you need robust scalability features right from the start. While lightweight, lagent may require additional custom work to handle more demanding scaling requirements.
- When should I avoid LeanCopilot?
- Working exclusively in theorem provers other than Lean or Lean4 Looking for general-purpose AI programming assistant beyond Lean's domain
- Is lagent or LeanCopilot more popular on GitHub?
- lagent has more GitHub stars (2,276 vs 1,303). Stars measure visibility, not whether either tool fits your constraints.
- Are lagent and LeanCopilot open source?
- Yes - both are open-source projects on GitHub (lagent: Apache-2.0, LeanCopilot: MIT).
- Where can I find alternatives to lagent or LeanCopilot?
- GraphCanon lists graph-backed alternatives at lagent alternatives and LeanCopilot alternatives (lagent markdown twin, LeanCopilot markdown twin), ranked by typed relationship edges rather than popularity votes.
- Is there a machine-readable version of this comparison?
- Yes. The markdown twin at this comparison mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers.
- Which is better maintained, lagent or LeanCopilot?
- lagent: Active. LeanCopilot: Active. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance.
- Where are the full trust reports for lagent and LeanCopilot?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: lagent trust report; LeanCopilot trust report.